Dual-power-supply equipment and monitoring system

Abstract

The utility model relates to the technical field of monitoring facilities, and provides a dual-power supply device and a monitoring system, and the power supply device comprises a common power supply assembly, a standby power supply assembly, and a photovoltaic power generation panel. An alternating current contactor is arranged between the frequently-used power supply assembly and the standby power supply assembly; the input end of the frequently-used power supply assembly is electrically connected with the photovoltaic power generation panel, the output ends of the frequently-used power supply assembly and the standby power supply assembly are respectively and electrically connected with one side of the alternating current contactor, and the other side of the alternating current contactor is electrically connected with an electric appliance; the standby power supply assembly is provided with a storage battery module and a heating assembly tightly attached to the storage battery module. According to the dual-power-supply equipment provided by the utility model, under the condition that the voltage of the common power supply assembly is insufficient, the standby power supply assembly is automatically switched to provide power for the monitoring system, and the standby power supply assembly is also provided with the heating assembly, so that the reduction of battery performance caused by low temperature is avoided, and continuous power is provided for the monitoring system in an extremely cold environment.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring facilities, in particular to dual power supply equipment and a monitoring system. Background Art

[0002] Monitoring equipment is becoming increasingly mature and popular, but the threshold for using monitoring equipment in extremely cold areas and areas without electricity is still high. This has led to the emergence of cold-resistant capacitor batteries. Compared with ordinary lithium batteries, although they have a slightly higher cost, they extend the battery life and can be charged and discharged quickly and stably in extremely cold environments. However, in extremely cold areas and areas without electricity, to ensure the long-term stable operation of monitoring equipment, capacitor batteries need to be charged.

[0003] CN116195164A discloses a method for charging at least one battery pack from at least one photovoltaic panel (1, 2). The photovoltaic panel generates instantaneous electric power (PΔt) at each time point (Δt), which is converted into a charging current in a converter connected to the photovoltaic panel. The charging current is transmitted to at least one battery pack via a DC power line. According to this method, at each time point (Δt), the value of the instantaneous electric power (PΔt) of the photovoltaic panel and the value of the maximum possible charging voltage of the battery pack are continuously monitored. Then, at each time point (Δt), the instantaneous electric power (PΔt) of the photovoltaic panel is continuously converted into an optimal charging current, with the optimal charging current as the maximum value, and the optimal charging current satisfies the conditions Iopt.= and Iopt.≤Imax.

[0004] In the existing technology, capacitor batteries are usually used to power monitoring equipment. However, under extreme climatic conditions, the battery life of capacitor batteries is not strong, and charging capacitor batteries is extremely challenging. To solve this technical problem, photovoltaic panels are generally used to charge capacitor batteries in the existing technology. However, capacitor batteries are charged and discharged at the same time, resulting in a shorter battery life. When the battery cell temperature is below 0°C, the battery power supply will also drop significantly, resulting in insufficient battery power supply and causing the entire monitoring system to be paralyzed. Utility Model Content

[0005] Long-term practice has found that under extreme climatic conditions, the battery life of capacitor batteries is not strong, and charging capacitor batteries is extremely challenging. In existing technologies, photovoltaic panels are generally used to charge capacitor batteries, but capacitor batteries are charged and discharged at the same time, resulting in a shorter battery life. When the battery cell temperature is below 0°C, the battery power supply will also drop significantly, resulting in insufficient battery power supply and causing the entire monitoring system to be paralyzed.

[0006] In view of this, the present invention aims to provide a dual power supply device to at least solve the above technical problems existing in the prior art.

[0007] In one aspect of the present invention, a dual power supply device is provided, the power supply device comprising: a common power supply component, a backup power supply component and a photovoltaic power generation panel;

[0008] An AC contactor is provided between the normal power supply component and the backup power supply component.

[0009] The input end of the common power supply assembly is electrically connected to the photovoltaic power generation panel, the output ends of the common power supply assembly and the backup power supply assembly are electrically connected to one side of the AC contactor respectively, and the other side of the AC contactor is electrically connected to the electrical appliance;

[0010] The backup power supply component is provided with a battery module and a heating component that is closely fitted with the battery module.

[0011] In one embodiment, the AC contactor includes a first contact and a second contact, the first contact is connected to the normal power supply component, and the second contact is connected to the backup power supply component;

[0012] The first contact and the second contact can control the on and off of the circuit.

[0013] In one embodiment, the first contact is set as a normally closed contact, and the second contact is set as a normally open contact. When the normal power supply device is powered off, the second contact is electrically connected to the backup power supply component.

[0014] In one embodiment, the backup power supply assembly is further provided with a housing, and the battery module and the heating assembly are both provided in the housing;

[0015] The battery module includes a plurality of electrically connected battery cells, and the heating component includes two heating sheets;

[0016] In one embodiment, the two heating sheets are respectively bonded to two sides of the battery module.

[0017] In one embodiment, the surface of the battery module is coated with a temperature-sensitive material.

[0018] In one embodiment, connection terminals are respectively provided on both sides of the housing, one end of the connection terminal is electrically connected to the battery module, and the other end of the connection terminal is connected to the AC contactor.

[0019] In one embodiment, the common power supply assembly includes a capacitor battery module, and the capacitor battery module includes at least two electrically connected capacitor battery cells;

[0020] In one embodiment, the common power supply assembly further includes a power supply control board, which is electrically connected to the capacitor battery module and can control the input and output of the common power supply current.

[0021] Another aspect of the embodiment of the present invention discloses a monitoring system, which includes a dual power supply device with the above technical features.

[0022] The utility model discloses a dual power supply device, which is provided with two power supply components, namely a normal power supply component and a backup power supply component. In order to charge the normal power supply component, a photovoltaic power generation panel is provided to be electrically connected to the normal power supply component. When the power supply component is exhausted, the photovoltaic power generation panel can charge the normal power supply component in time. In order to realize automatic switching between the normal power supply component and the backup power supply component, an AC contactor is provided between the normal power supply component and the backup power supply component; the input end of the normal power supply component is electrically connected to the photovoltaic power generation panel, and the output ends of the normal power supply and the backup power supply are respectively electrically connected to one side of the AC contactor, and the other side of the AC contactor is electrically connected to the electrical appliance. When the normal power supply device is powered off, the part connecting the normal power supply device and the AC contactor is disconnected, and the part connecting the backup power supply device and the AC contactor is closed. On the contrary, when the photovoltaic power generation panel charges the normal power supply device to a certain extent and the normal power supply device is discharged, the part connecting the normal power supply device and the AC contactor is closed, and the part connecting the backup power supply device and the AC contactor is disconnected. In an extremely cold environment, in order to ensure the use efficiency of the battery, the backup power supply component is provided with a battery module and a heating component that is tightly fitted with the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of a dual power supply device connection according to one embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional diagram of a backup power supply assembly according to one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of an explosion of a battery module and a heating component according to one embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of a commonly used power supply component in one embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Common power supply components; 11. Capacitor battery module; 12. Power control board; 2. Backup power supply components; 21. Battery module; 22. Heating components; 221. Heating plate; 23. Housing; 231. Terminal blocks; 3. Photovoltaic panels; 4. AC contactor; 41. First contact; 42. Second contact DETAILED DESCRIPTION

[0030] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0031] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding.

[0033] In existing technologies, capacitor batteries have limited battery life under extreme climatic conditions, and charging them is extremely challenging. Photovoltaic panels are generally used to charge capacitor batteries, but capacitor batteries are charged and discharged simultaneously, shortening their lifespan. When the battery cell temperature drops below 0°C, the battery power supply also drops significantly, resulting in insufficient battery power and paralysis of the entire monitoring system.

[0034] The utility model provides a dual power supply device. The dual current interactive device provided by the utility model is mainly used in extremely cold areas or areas without electricity.

[0035] Figure 1 This is a schematic diagram of a dual power supply device connection according to one embodiment of the present invention; Figure 2 This is a cross-sectional diagram of a backup power supply assembly according to one embodiment of the present invention; Figure 3 This is a schematic diagram of an explosion of a battery module and a heating component according to one embodiment of the present invention; Figure 4 This is a schematic diagram of a commonly used power supply component in one embodiment of the present invention.

[0036] like Figure 1-4 As shown, the power supply device includes: a normal power supply component 1, a backup power supply component 2 and a photovoltaic power generation panel 3; an AC contactor 4 is provided between the normal power supply component 1 and the backup power supply component 2; the input end of the normal power supply component 1 is electrically connected to the photovoltaic power generation panel 3, and the output ends of the normal power supply component 1 and the backup power supply component 2 are respectively electrically connected to one side of the AC contactor 4, and the other side of the AC contactor 4 is electrically connected to the electrical appliance; the backup power supply component 2 is provided with a battery module 21 and a heating component 22 that is tightly fitted with the battery module 21.

[0037] The utility model provides a dual power supply device, which is provided with two power supply components, namely a normal power supply component 1 and a backup power supply component 2. Specifically, in order to charge the normal power supply component 1, a photovoltaic power generation panel 3 is provided, and the photovoltaic power generation panel 3 is electrically connected to the normal power supply component 1. When the normal power supply component 1 is exhausted, the photovoltaic power generation panel 3 can charge the normal power supply component 1 in time. In order to realize automatic switching between the normal power supply component 1 and the backup power supply component 2, an AC contactor 4 is provided between the normal power supply component 1 and the backup power supply component 2; the input end of the normal power supply component 1 is electrically connected to the photovoltaic power generation panel 3, and the output ends of the normal power supply component 1 and the backup power supply component 2 are respectively electrically connected to one side of the AC contactor 4, and the other side of the AC contactor 4 is electrically connected to the electrical appliance. When the normal power supply component 1 is powered off, the part connecting the normal power supply component 1 and the AC contactor 4 is disconnected, and the part connecting the backup power supply component 2 and the AC contactor 4 is closed. On the contrary, when the photovoltaic power generation panel 3 charges the normal power supply component 1 to a certain extent and the normal power supply component 1 is discharged, the part connecting the normal power supply component 1 and the AC contactor 4 is closed, and the part connecting the backup power supply component 2 and the AC contactor 4 is disconnected. In an extremely cold environment, in order to ensure the use efficiency of the battery, the backup power supply assembly 2 is provided with a battery module 21 and a heating assembly 22 that is tightly fitted with the battery module 21 .

[0038] In order to realize automatic switching between the normal power supply component 1 and the backup power supply component 2, in a specific embodiment, the AC contactor 4 includes a first contact 41 and a second contact 42, the first contact 41 is connected to the normal power supply component 1, and the second contact 42 is connected to the backup power supply component 2, wherein the AC contactor 4 can be set as an automatic switching appliance with the function of connecting or disconnecting the load main circuit. A double-control switch is provided in the AC contactor 4, and electromagnetic force can be used to connect the connecting wire in the switch to the first contact 41 or the second contact 42. Specifically, the connection and disconnection of the first contact 41 and the second contact 42 can control the connection and disconnection of the circuit.

[0039] In order to ensure the normal operation of the circuit and prevent the normal power supply component 1 and the backup power supply component 2 from discharging at the same time, in a specific embodiment, the first contact 41 is set to a normally closed contact, and the second contact 42 is set to a normally open contact. The normally closed contact refers to a contact that can generate electromagnetic force to attract the switch to close, and the normally open contact refers to a contact that cannot generate electromagnetic force; when the normal power supply component 1 is powered off, the second contact 42 is electrically connected to the backup power supply component 2. Specifically, when the normal power supply component 1 stops discharging, the current is disconnected, the electromagnetic force on the first contact 41 disappears, and the switch in the AC contactor 4 jumps to the second contact 42. At this time, the backup power supply component 2 is switched to charge the electrical appliances. When the photovoltaic panel 3 supplies power to the normal power supply component 1 to a certain level, the normal power supply component 1 is powered on, the electromagnetic force on the first contact 41 is restored, and the switch in the AC contactor 4 jumps to the first contact 41. At this time, the normal power supply component 1 is switched to charge the electrical appliances.

[0040] like Figure 2 As shown, in order to ensure that the battery can still supply power normally in an environment below 0°C, in a specific embodiment, the backup power supply component 2 is further provided with a housing 23, which has a heat-insulating function. The battery module 21 and the heating component 22 are both arranged in the housing 23; the battery module 21 includes a plurality of electrically connected battery cells, and the heating component 22 includes two heating sheets 221;

[0041] like Figure 3 As shown, in order to increase the heating area of ​​the battery module 21 , in a specific embodiment, two heating sheets 221 are respectively adhered to two sides of the battery module 21 .

[0042] In order to uniformly heat the battery module 21 , in one embodiment, the surface of the battery module 21 is coated with a temperature-sensitive material.

[0043] For convenient connection, connection terminals 231 are provided on both sides of the housing 23 . One end of the connection terminal 231 is electrically connected to the battery module 21 , and the other end of the connection terminal 231 is connected to the AC contactor 4 .

[0044] like Figure 4 As shown, in order to increase the service life of the common power supply assembly 1, in a specific embodiment, the common power supply assembly 1 includes a capacitor battery module 11, and the capacitor battery module 11 includes at least two electrically connected capacitor battery cells;

[0045] In order to prevent the common power supply component 1 from overcharging or over-discharging, in a specific embodiment, the common power supply component 1 also includes a power control board 12, which is electrically connected to the capacitor battery module 11. The power control board 12 can control the input and output of the current of the common power supply component 1. Specifically, when the voltage in the capacitor battery module 11 is lower than the threshold, the power control board 12 controls the capacitor battery module 11 to stop discharging, and the photovoltaic power generation panel 3 charges the capacitor battery module 11. When charged to a certain level, the power control board 12 controls the capacitor battery module 11 to stop charging and discharge.

[0046] Another aspect of an embodiment of the present invention discloses a monitoring system, which includes a dual power supply device having any one of the above technical features.

[0047] It should be noted that for the aforementioned method embodiments, for simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present invention.

[0048] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] In the several embodiments provided by the present invention, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0050] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0051] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dual power supply device, characterized in that: The power supply device comprises: a normal power supply component (1), a backup power supply component (2) and a photovoltaic power generation panel (3); An AC contactor (4) is provided between the normal power supply component (1) and the backup power supply component (2); The input end of the common power supply component (1) is electrically connected to the photovoltaic power generation panel (3), the output ends of the common power supply component (1) and the backup power supply component (2) are electrically connected to one side of the AC contactor (4), and the other side of the AC contactor (4) is electrically connected to the electrical appliance; The backup power supply component (2) is provided with a battery module (21) and a heating component (22) tightly fitted with the battery module (21).

2. The dual power supply device according to claim 1, wherein: The AC contactor (4) comprises a first contact (41) and a second contact (42), wherein the first contact (41) is connected to the normal power supply component (1), and the second contact (42) is connected to the backup power supply component (2); The first contact (41) and the second contact (42) can control the on and off of the circuit.

3. The dual power supply device according to claim 2, characterized in that: The first contact (41) is set as a normally closed contact, and the second contact (42) is set as a normally open contact. When the normal power supply component (1) stops discharging, the second contact (42) is electrically connected to the backup power supply component (2).

4. The dual power supply device according to claim 1, wherein: The backup power supply component (2) is further provided with a housing (23), and the battery module (21) and the heating component (22) are both provided in the housing (23); The battery module (21) includes a plurality of electrically connected battery cells, and the heating component (22) includes two heating sheets (221).

5. The dual power supply device according to claim 4, characterized in that: The two heating sheets (221) are respectively bonded to two sides of the battery module (21).

6. The dual power supply device according to claim 5, characterized in that: The surface of the battery module (21) is coated with a temperature-sensitive material.

7. The power supply device according to claim 4, characterized in that: Wiring terminals (231) are respectively provided on both sides of the housing (23); one end of the wiring terminal (231) is electrically connected to the battery module (21), and the other end of the wiring terminal (231) is connected to the AC contactor (4).

8. The dual power supply device according to claim 1, wherein: The common power supply assembly (1) comprises a capacitor battery module (11), and the capacitor battery module (11) comprises at least two electrically connected capacitor battery cells.

9. The dual power supply device according to claim 8, characterized in that: The conventional power supply component (1) further comprises a power supply control board (12), wherein the power supply control board (12) is electrically connected to the capacitor battery module (11), and the power supply control board (12) is capable of controlling the input and output of current of the conventional power supply component (1).

10. A monitoring system, characterized in that: The monitoring system includes the dual power supply device according to any one of claims 1 to 9.

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